When everything is set up, you can pour the mixture of yeast and warm water into the bottle

You’ll see the foam will come out in any moment

Mentos soda

Mentos and soda also can be a good alternative, because you can find the main ingredients, which is soda and Mentos easily on any mini-market. Although soda might contain 11 List of Chemicals in Soda – Harmful Ingredients

In this second experiment, you will need:

Mentos candies

2 L of diet coke

Paper

Card

What you need to do:

Go to an open area, because this experiment will cause a lot of mess

Roll a paper and stack your mentos candies inside it

Close it with a card

Prepare your soda by shaking it a little then open the cap

Put your tube with the card facing the mouth of the bottle

When everything is set up, remove the card so your mentos candies will fall into the bottle in a constant motion.

Step back quickly, for you will be having a soda eruption.

Dry ice Volcano

Dry ice volcano will be the next easier experiment to do if you want to create a volcano experiment.

So, in this last but not least experiment, you will need:

Dry ice

Warm water (the higher the temperature the better it creates)

Container

Bottle

Food coloring (red)

Mountain shape (paper mache/ clay/dough)

What you need to do:

Prepare the mountain shape paper mache/ clay/ dough

Put it in a container to make it easier for you to clean it afterward

Pour the warm water in a glass bottle

Give some drops of food coloring to make it more realistic

Put the glass bottle with water in the middle of mountain

When everything is set up, start to drop the dry ice into the glass bottle

Take a look on how dry ice and warm water reacts to create smoke and red foam which will looking like a bursting lava

That is all of the alternative experiment that you can try to substitute vinegar + baking soda. Happy trying